No matter what I do I cannot find a way to select anything in the Helix/Spiral feature in DriveWorksXpress. Because of this any change I make on DriveWorks does not translate into a change on the model generated from DriveWorks

Helix/Spiral features can be captured and driven in DriveWorksXpress. You're able to capture and drive the pitch of the spirals, the number of revolutions made and the starting angle of the spiral.

To capture these dimensions double click on the sketch that the dimensions are related to. Select the dimension you want to capture by clicking on it in the SOLIDWORKS graphics area. Then in the DriveWorksXpress toolbar give the dimension you have captured a relevant name like “Spiral Pitch”. Then click on the “Add” button to capture this dimension.

For more detail on how to capture dimensions please see the following help file;